flocabulary is used by an estimated 300,000 students. hip-hop is known for pushing the end vole of, not always in a good way. incendiary racial rhetoric, vote garrity, sex lyrics permeate much of rap. >> we are trying to take the violence out the artists that we work with reach out to us because they realize we are trying to work with kids directly and do something that is across the board positive. >> perfect opportunity to bring it to the class. >> the artists do they have educational backgrounds? >> some do. we've worked with artists who have been tutors. >> tucker: any complaints from parents, teachers? >> i could list the complaints on one or two hands. it happens but it is very rare. >> tucker: i wonder why it takes hip-hop to get certain students engaged in learning? it never has, why does it now require that? >> i think the bigger idea is using something that students are interested in, that has a connection. hip-hop is one of those things. stuck -- >> tucker: is technology improving or a distraction? how thousands of teachers ar